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[0/2] Add I2C bus recovery support on Kunpeng 920/930

Message ID 20220125124930.50369-1-yangyicong@hisilicon.com
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Series Add I2C bus recovery support on Kunpeng 920/930 | expand

Message

Yicong Yang Jan. 25, 2022, 12:49 p.m. UTC 
This series adds the I2C bus recovery support on Kunpeng 920/930.
We're using HiSilicon I2C controller on Kunpeng 930 and Designware
I2C controller on Kunpeng 920. For both platform, the SCL/SDA pins
are multiplexed with GPIOs. Both driver use generic GPIO recovery
method and we need to switch the pin mutiplexing before/after the
recovery process. We use ACPI method to help on the pin mux switching
which is also introduced in this series.

Yicong Yang (2):
  i2c: hisi: Add generic GPIO bus recovery support
  i2c: designware: Add ACPI assisted recovery support

 drivers/i2c/busses/i2c-designware-core.h    |  2 +
 drivers/i2c/busses/i2c-designware-master.c  | 84 ++++++++++++++++++++-
 drivers/i2c/busses/i2c-designware-platdrv.c |  6 +-
 drivers/i2c/busses/i2c-hisi.c               | 78 +++++++++++++++++++
 4 files changed, 164 insertions(+), 6 deletions(-)

Comments

Andy Shevchenko Feb. 7, 2022, 11:21 a.m. UTC | #1 
On Mon, Feb 07, 2022 at 03:37:17PM +0800, Yicong Yang wrote:
> a friendly ping ...
> 
> Hi Designware maintainers and Wolfram, any comments for this?

Answered, sorry for the delay.